content: /*
   * Copyright 2017 David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package hu.akarnokd.reactive4javaflow.impl;
  
  import java.lang.ref.Cleaner;
  
  /**
   * Hosts the standard Java 9' new {@link Cleaner} service that allows cleaning up
   * abandoned resources such as {@code newThread()} and {@code io()} SchedulerService
   * workers.
   */
  public final class CleanerHelper {
  
      static final Cleaner cleaner;
  
      static {
          cleaner = Cleaner.create(r -> new Thread(r, "Reactive4JavaFlow.Cleaner"));
      }
  
      private CleanerHelper() {
          throw new IllegalStateException("No instances!");
      }
  
      public static Cleaner.Cleanable register(Object object, Runnable action) {
          return cleaner.register(object, action);
      }
  }
  